Bug#984472: marked as done (e2fsprogs: resize2fs on inconsistent filesystem (in a way that e2fsck doesn't detect) completely corrupts MMP data (in a way e2fsck can't recover from))

[Debian Bug Tracking System]

Your message dated Tue, 27 Jul 2021 18:33:32 +0000
with message-id <e1m8rtu-0003lq...@fasolo.debian.org>
and subject line Bug#984472: fixed in e2fsprogs 1.46.3-1
has caused the Debian Bug report #984472,
regarding e2fsprogs: resize2fs on inconsistent filesystem (in a way that e2fsck 
doesn't detect) completely corrupts MMP data (in a way e2fsck can't recover 
from)
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact ow...@bugs.debian.org
immediately.)


-- 
984472: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=984472
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems

--- Begin Message ---

Package: e2fsprogs
Version: 1.44.5-1+deb10u3
Version: 1.46.2-1
Severity: normal

Dear Maintainer,

Please consider this image (21M compressed, 1.2G data over 1T volume),
generated from e2image -Q of a snapshot generated with the proxmox UI,
which presumably didn't freeze it:
  https://lfs.nabijaczleweli.xyz/0006-proxmox-vs-e2fsprogs/rbd13.e2i.qcow2.zst

The image is then applied to a larger device
(I just tested with 10T, but 4T should also work;
 I'd expect any enlargement to work, but we hit it with 4T originally).

Doing e2fsck -f on the original-size blockdev results in a functioning
filesystem (with some files missing).

However, resizing first, then doing:
  1. nothing/e2fsck/e2fsck -f
  2. resize2fs
destroys the filesystem seemingly permanently.
resize2fs (and then other programs from the suite then suggest):
  3. e2fsck -f
  4. tune2fs -f -E clear_mmp
  5. e2fsck -f
This doesn't fix it either, and subsequent resize2fs runs bail out
immediately on invalid MMP blocks (e2fsprogs from Buster fail slightly
differently, in that they raze all superblocks, but the end effect
is the same). I've looped e2fsck -f for over 260 runs and never got
the same block bitmap twice (attached, may be useful?).

Transcripts follow, all with sid e2fsprogs (1.46.2-1)
on a 10T blockdev. The resize2fs steps take inordinately long times
to fail, and they manage to fallocate(2)/fsync(2) most of the blockdev
beforehand, but they do fail.

Best,
наб


1=nothing:
-- >8 --
$ resize2fs /dev/zvol/filling/store/nabijaczleweli/e2test
resize2fs 1.46.2 (28-Feb-2021)
Please run 'e2fsck -f /dev/zvol/filling/store/nabijaczleweli/e2test' first.

$ e2fsck -f   /dev/zvol/filling/store/nabijaczleweli/e2test
e2fsck 1.46.2 (28-Feb-2021)
e2fsck: MMP: e2fsck being run while checking MMP block
MMP check failed: If you are sure the filesystem is not in use on any node, run:
'tune2fs -f -E clear_mmp /dev/zvol/filling/store/nabijaczleweli/e2test'
MMP_block:
    mmp_magic: 0x4d4d50
    mmp_check_interval: 10
    mmp_sequence: e24d4d50
    mmp_update_date: Wed Mar  3 14:51:38 2021
    mmp_update_time: 1614779498
    mmp_node_name: tarta
    mmp_device_name: /dev/zvol/filling/store/nabijacz

/dev/zvol/filling/store/nabijaczleweli/e2test: ********** WARNING: Filesystem 
still has errors **********

$ tune2fs -f -E clear_mmp /dev/zvol/filling/store/nabijaczleweli/e2test
tune2fs 1.46.2 (28-Feb-2021)

$ e2fsck -fy   /dev/zvol/filling/store/nabijaczleweli/e2test
e2fsck 1.46.2 (28-Feb-2021)
ext2fs_open2: Superblock checksum does not match superblock
e2fsck: Superblock invalid, trying backup blocks...
Superblock has invalid MMP magic.  Fix? yes

Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences:  -9927 +(196608--196611) +196613 +196615 +196617 
+(196620--196621) +196623 +196625 +(196628--196629) +(196631--196643) +196645 
+196647 +196649 +(196652--196653) +196655 +196657 +(196660--196661) 
+(196663--196664) +(196666--196668) +196672 +196674 +196676 +196678 
+(196680--196683) +196686 +(196694--196700) +(196703--196737) +196739 +196743 
+(196745--196748) +(196751--196752) +(196754--196755) +(196759--196761) +196763 
+196767 +(196769--196772) +(196775--197247) +197252 +(197254--197257) 
+(197259--197260) +197263 +197265 +(197267--197268) +(197271--197272) +197275 
+197279 +197284 +(197286--197288) +197290 +(197295--197296) +197299 +197303 
+197308 +(197311--197313) +197316 +197319 +197324 +(197326--197328) 
+(197331--197332) +197335 +(197337--197338) +197340 +(197343--197345) +197348 
+(197351--197353) +197356 +197359 +(197361--197362) +197364 +(197367--197368) 
+197372 +197375 +(197379--197380) +197383 +197388 +(197390--197391) 
+(197394--197395) +(197399--197401) +197403 +197407 +197412 +(197415--197416) 
+(197418--197419) +197423 +197425 +(197427--197428) +197431 +197436 
+(197438--197440) +197444 +197447 +(197449--197452) +(197455--197456) 
+(197458--197460) +197463 +(197465--197466) +197468 +(197471--197472) +197474 
+197476 +197479 +(197481--197484) +197487 +(197490--197492) +(197495--197496) 
+197498 +197503 +197505 +(197507--204767) +204771 +204774 +204776 
+(204779--204780) +204783 +204785 +204787 +204791 +204794 +(204797--204798) 
-(16398336--16402431)
Fix? yes

Free blocks count wrong for group #0 (22201, counted=22202).
Fix? yes

Free blocks count wrong (2460488124, counted=2460488125).
Fix? yes

Padding at end of inode bitmap is not set. Fix? yes


/dev/zvol/filling/store/nabijaczleweli/e2test: ***** FILE SYSTEM WAS MODIFIED 
*****
/dev/zvol/filling/store/nabijaczleweli/e2test: 225913/671088640 files (8.6% 
non-contiguous), 223866435/2684354560 blocks


$ resize2fs /dev/zvol/filling/store/nabijaczleweli/e2test
resize2fs 1.46.2 (28-Feb-2021)
resize2fs: MMP: invalid magic number while trying to open 
/dev/zvol/filling/store/nabijaczleweli/e2test
Couldn't find valid filesystem superblock.

$ e2fsck -fy   /dev/zvol/filling/store/nabijaczleweli/e2test
e2fsck 1.46.2 (28-Feb-2021)
Superblock has invalid MMP magic.  Fix? yes

Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences:  +(196608--196611) +196613 +196615 +196617 
+(196620--196621) +196623 +196625 +(196628--196629) +(196631--196643) +196645 
+196647 +196649 +(196652--196653) +196655 +196657 +(196660--196661) 
+(196663--196664) +(196666--196668) +196674 +196677 +196679 +196681 +196683 
+196686 +(196694--196700) +(196703--196737) +196739 +196743 +(196745--196748) 
+(196751--196752) +(196754--196755) +(196759--196761) +196763 +196767 
+(196769--196772) +(196775--197247) +197252 +(197254--197257) +(197259--197260) 
+197263 +197265 +(197267--197268) +(197271--197272) +197275 +197279 +197284 
+(197286--197288) +197290 +(197295--197296) +197299 +197303 +197308 
+(197311--197313) +197316 +197319 +197324 +(197326--197328) +(197331--197332) 
+197335 +(197337--197338) +197340 +(197343--197345) +197348 +(197351--197353) 
+197356 +197359 +(197361--197362) +197364 +(197367--197368) +197372 +197375 
+(197379--197380) +197383 +197388 +(197390--197391) +(197394--197395) 
+(197399--197401) +197403 +197407 +197412 +(197415--197416) +(197418--197419) 
+197423 +197425 +(197427--197428) +197431 +197436 +(197438--197440) +197444 
+197447 +(197449--197452) +(197455--197456) +(197458--197460) +197463 
+(197465--197466) +197468 +(197471--197472) +197474 +197476 +197479 
+(197481--197484) +197487 +(197490--197492) +(197495--197496) +197498 +197503 
+197505 +(197507--204769) +(204776--204777) +(204779--204780) +204782 +204788 
+(204791--204792) +204795 +(204798--204799)
Fix? yes


/dev/zvol/filling/store/nabijaczleweli/e2test: ***** FILE SYSTEM WAS MODIFIED 
*****
/dev/zvol/filling/store/nabijaczleweli/e2test: 225913/671088640 files (8.6% 
non-contiguous), 223866435/2684354560 blocks

$ resize2fs /dev/zvol/filling/store/nabijaczleweli/e2test
resize2fs 1.46.2 (28-Feb-2021)
resize2fs: MMP: invalid magic number while trying to open 
/dev/zvol/filling/store/nabijaczleweli/e2test
Couldn't find valid filesystem superblock.
-- >8 --


1=e2fsck:
-- >8 --
$ e2fsck    /dev/zvol/filling/store/nabijaczleweli/e2test
e2fsck 1.46.2 (28-Feb-2021)
MMP interval is 10 seconds and total wait time is 42 seconds. Please wait...
Clearing orphaned inode 45617124 (uid=107, gid=115, mode=0100600, size=16777216)
Clearing orphaned inode 15073744 (uid=0, gid=0, mode=0100644, size=593696)
Clearing orphaned inode 15073743 (uid=0, gid=0, mode=0100644, size=3031904)
Clearing orphaned inode 50331709 (uid=0, gid=0, mode=0100644, size=149704)
Clearing orphaned inode 50332495 (uid=0, gid=0, mode=0100755, size=231560)
Clearing orphaned inode 50332319 (uid=0, gid=0, mode=0100644, size=2670992)
Clearing orphaned inode 50332271 (uid=0, gid=0, mode=0100644, size=651472)
Clearing orphaned inode 50332251 (uid=0, gid=0, mode=0100644, size=282752)
Clearing orphaned inode 13 (uid=0, gid=0, mode=0100600, size=0)
/dev/zvol/filling/store/nabijaczleweli/e2test: clean, 225913/67108864 files, 
185961409/268435456 blocks

$ resize2fs /dev/zvol/filling/store/nabijaczleweli/e2test
resize2fs 1.46.2 (28-Feb-2021)
Please run 'e2fsck -f /dev/zvol/filling/store/nabijaczleweli/e2test' first.

$ e2fsck -f   /dev/zvol/filling/store/nabijaczleweli/e2test
e2fsck 1.46.2 (28-Feb-2021)
e2fsck: MMP: e2fsck being run while checking MMP block
MMP check failed: If you are sure the filesystem is not in use on any node, run:
'tune2fs -f -E clear_mmp /dev/zvol/filling/store/nabijaczleweli/e2test'
MMP_block:
    mmp_magic: 0x4d4d50
    mmp_check_interval: 10
    mmp_sequence: e24d4d50
    mmp_update_date: Wed Mar  3 17:20:25 2021
    mmp_update_time: 1614788425
    mmp_node_name: tarta
    mmp_device_name: /dev/zvol/filling/store/nabijacz

/dev/zvol/filling/store/nabijaczleweli/e2test: ********** WARNING: Filesystem 
still has errors **********

$ tune2fs -f -E clear_mmp /dev/zvol/filling/store/nabijaczleweli/e2test
tune2fs 1.46.2 (28-Feb-2021)

$ e2fsck -f   /dev/zvol/filling/store/nabijaczleweli/e2test
e2fsck 1.46.2 (28-Feb-2021)
Pass 1: Checking inodes, blocks, and sizes
Inode 46530577 extent tree (at level 1) could be shorter.  Optimize<y>? yes
Inode 46530714 extent tree (at level 1) could be shorter.  Optimize<y>? yes
Pass 1E: Optimizing extent trees
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information

/dev/zvol/filling/store/nabijaczleweli/e2test: ***** FILE SYSTEM WAS MODIFIED 
*****
/dev/zvol/filling/store/nabijaczleweli/e2test: 225913/67108864 files (8.6% 
non-contiguous), 185961407/268435456 blocks

$ resize2fs /dev/zvol/filling/store/nabijaczleweli/e2test
resize2fs 1.46.2 (28-Feb-2021)
Resizing the filesystem on /dev/zvol/filling/store/nabijaczleweli/e2test to 
2684354560 (4k) blocks.
resize2fs: MMP: invalid magic number while trying to resize 
/dev/zvol/filling/store/nabijaczleweli/e2test
Please run 'e2fsck -fy /dev/zvol/filling/store/nabijaczleweli/e2test' to fix 
the filesystem
after the aborted resize operation.

$ e2fsck -fy   /dev/zvol/filling/store/nabijaczleweli/e2test
e2fsck 1.46.2 (28-Feb-2021)
ext2fs_open2: Superblock checksum does not match superblock
e2fsck: Superblock invalid, trying backup blocks...
Superblock has invalid MMP magic.  Fix? yes

Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences:  -9927 +(196608--196611) +196613 +196615 +196617 
+(196620--196621) +196623 +196625 +(196628--196629) +(196631--196643) +196645 
+196647 +196649 +(196652--196653) +196655 +196657 +(196660--196661) 
+(196663--196664) +(196666--196668) +(196673--196678) +(196680--196681) 
+(196684--196685) +(196694--196700) +(196703--196737) +196739 +196743 
+(196745--196748) +(196751--196752) +(196754--196755) +(196759--196761) +196763 
+196767 +(196769--196772) +(196775--197247) +197252 +(197254--197257) 
+(197259--197260) +197263 +197265 +(197267--197268) +(197271--197272) +197275 
+197279 +197284 +(197286--197288) +197290 +(197295--197296) +197299 +197303 
+197308 +(197311--197313) +197316 +197319 +197324 +(197326--197328) 
+(197331--197332) +197335 +(197337--197338) +197340 +(197343--197345) +197348 
+(197351--197353) +197356 +197359 +(197361--197362) +197364 +(197367--197368) 
+197372 +197375 +(197379--197380) +197383 +197388 +(197390--197391) 
+(197394--197395) +(197399--197401) +197403 +197407 +197412 +(197415--197416) 
+(197418--197419) +197423 +197425 +(197427--197428) +197431 +197436 
+(197438--197440) +197444 +197447 +(197449--197452) +(197455--197456) 
+(197458--197460) +197463 +(197465--197466) +197468 +(197471--197472) +197474 
+197476 +197479 +(197481--197484) +197487 +(197490--197492) +(197495--197496) 
+197498 +197503 +197505 +(197507--204768) +(204770--204771) +204779 +204781 
+(204783--204784) +(204791--204792) +(204794--204799)
Fix? yes

Free blocks count wrong for group #0 (22201, counted=22202).
Fix? yes

Free blocks count wrong (2460488124, counted=2460488125).
Fix? yes

Padding at end of inode bitmap is not set. Fix? yes


/dev/zvol/filling/store/nabijaczleweli/e2test: ***** FILE SYSTEM WAS MODIFIED 
*****
/dev/zvol/filling/store/nabijaczleweli/e2test: 225913/671088640 files (8.6% 
non-contiguous), 223866435/2684354560 blocks
-- >8 --


1=e2fsck -f:
-- >8 --
$ e2fsck -fy   /dev/zvol/filling/store/nabijaczleweli/e2test
e2fsck 1.46.2 (28-Feb-2021)
MMP interval is 10 seconds and total wait time is 42 seconds. Please wait...
Clearing orphaned inode 45617124 (uid=107, gid=115, mode=0100600, size=16777216)
Clearing orphaned inode 15073744 (uid=0, gid=0, mode=0100644, size=593696)
Clearing orphaned inode 15073743 (uid=0, gid=0, mode=0100644, size=3031904)
Clearing orphaned inode 50331709 (uid=0, gid=0, mode=0100644, size=149704)
Clearing orphaned inode 50332495 (uid=0, gid=0, mode=0100755, size=231560)
Clearing orphaned inode 50332319 (uid=0, gid=0, mode=0100644, size=2670992)
Clearing orphaned inode 50332271 (uid=0, gid=0, mode=0100644, size=651472)
Clearing orphaned inode 50332251 (uid=0, gid=0, mode=0100644, size=282752)
Clearing orphaned inode 13 (uid=0, gid=0, mode=0100600, size=0)
Pass 1: Checking inodes, blocks, and sizes
Inode 46530577 extent tree (at level 1) could be shorter.  Optimize? yes

Inode 46530714 extent tree (at level 1) could be shorter.  Optimize? yes

Pass 1E: Optimizing extent trees
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information

/dev/zvol/filling/store/nabijaczleweli/e2test: ***** FILE SYSTEM WAS MODIFIED 
*****
/dev/zvol/filling/store/nabijaczleweli/e2test: 225913/67108864 files (8.6% 
non-contiguous), 185961407/268435456 blocks

$ resize2fs /dev/zvol/filling/store/nabijaczleweli/e2test
resize2fs 1.46.2 (28-Feb-2021)
Resizing the filesystem on /dev/zvol/filling/store/nabijaczleweli/e2test to 
2684354560 (4k) blocks.
resize2fs: MMP: invalid magic number while trying to resize 
/dev/zvol/filling/store/nabijaczleweli/e2test
Please run 'e2fsck -fy /dev/zvol/filling/store/nabijaczleweli/e2test' to fix 
the filesystem
after the aborted resize operation.

$ e2fsck -fy   /dev/zvol/filling/store/nabijaczleweli/e2test
e2fsck 1.46.2 (28-Feb-2021)
ext2fs_open2: Superblock checksum does not match superblock
e2fsck: Superblock invalid, trying backup blocks...
Superblock has invalid MMP magic.  Fix? yes

Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences:  -9927 +(196608--196611) +196613 +196615 +196617 
+(196620--196621) +196623 +196625 +(196628--196629) +(196631--196643) +196645 
+196647 +196649 +(196652--196653) +196655 +196657 +(196660--196661) 
+(196663--196664) +(196666--196668) +196672 +196674 +(196677--196679) 
+(196682--196684) +(196694--196700) +(196703--196737) +196739 +196743 
+(196745--196748) +(196751--196752) +(196754--196755) +(196759--196761) +196763 
+196767 +(196769--196772) +(196775--197247) +197252 +(197254--197257) 
+(197259--197260) +197263 +197265 +(197267--197268) +(197271--197272) +197275 
+197279 +197284 +(197286--197288) +197290 +(197295--197296) +197299 +197303 
+197308 +(197311--197313) +197316 +197319 +197324 +(197326--197328) 
+(197331--197332) +197335 +(197337--197338) +197340 +(197343--197345) +197348 
+(197351--197353) +197356 +197359 +(197361--197362) +197364 +(197367--197368) 
+197372 +197375 +(197379--197380) +197383 +197388 +(197390--197391) 
+(197394--197395) +(197399--197401) +197403 +197407 +197412 +(197415--197416) 
+(197418--197419) +197423 +197425 +(197427--197428) +197431 +197436 
+(197438--197440) +197444 +197447 +(197449--197452) +(197455--197456) 
+(197458--197460) +197463 +(197465--197466) +197468 +(197471--197472) +197474 
+197476 +197479 +(197481--197484) +197487 +(197490--197492) +(197495--197496) 
+197498 +197503 +197505 +(197507--204767) +(204769--204771) +(204775--204776) 
+204778 +204781 +204783 +(204785--204789) +204791 +204794 +(204797--204798) 
-(16398336--16402431)
Fix? yes

Free blocks count wrong for group #0 (22201, counted=22202).
Fix? yes

Free blocks count wrong (2460488124, counted=2460488125).
Fix? yes

Padding at end of inode bitmap is not set. Fix? yes


/dev/zvol/filling/store/nabijaczleweli/e2test: ***** FILE SYSTEM WAS MODIFIED 
*****
/dev/zvol/filling/store/nabijaczleweli/e2test: 225913/671088640 files (8.6% 
non-contiguous), 223866435/2684354560 blocks
-- >8 --


-- System Information:
Debian Release: 10.8
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-debug'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.19.0-14-amd64 (SMP w/24 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_WARN, 
TAINT_FIRMWARE_WORKAROUND, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_GB:en (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages e2fsprogs depends on:
ii  libblkid1    2.33.1-0.1
ii  libc6        2.28-10
ii  libcom-err2  1.44.5-1+deb10u3
ii  libext2fs2   1.44.5-1+deb10u3
ii  libss2       1.44.5-1+deb10u3
ii  libuuid1     2.33.1-0.1

Versions of packages e2fsprogs recommends:
pn  e2fsprogs-l10n  <none>

Versions of packages e2fsprogs suggests:
pn  e2fsck-static  <none>
pn  fuse2fs        <none>
pn  gpart          <none>
ii  parted         3.2-25

-- Configuration Files:
/etc/e2scrub.conf changed [not included]

-- no debconf information

e2fsck-f-loop.zst
Description: Binary data

signature.asc
Description: PGP signature

--- End Message ---

--- Begin Message ---

Source: e2fsprogs
Source-Version: 1.46.3-1
Done: Theodore Y. Ts'o <ty...@mit.edu>

We believe that the bug you reported is fixed in the latest version of
e2fsprogs, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 984...@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Theodore Y. Ts'o <ty...@mit.edu> (supplier of updated e2fsprogs package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmas...@ftp-master.debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Format: 1.8
Date: Tue, 27 Jul 2021 11:04:05 -0400
Source: e2fsprogs
Architecture: source
Version: 1.46.3-1
Distribution: experimental
Urgency: medium
Maintainer: Theodore Y. Ts'o <ty...@mit.edu>
Changed-By: Theodore Y. Ts'o <ty...@mit.edu>
Closes: 984472 986332 987641 989612 989630
Changes:
 e2fsprogs (1.46.3-1) experimental; urgency=medium
 .
   * New upstream release
   * Fix resize2fs bug when performing an off-line file system expansion
     with MMP and there isn't sufficient reserved block group descriptor
     blocks could lead to file system corruption.  (Closes: #984472)
   * Teach the filefrag program the -V option, which will print the version
     of the tool, or if -V option is specified twice, will print the list
     of supported FIEMAP flags.
   * Fix fast_commit portability problems on sparc64 and arm64
     architectures (the latter when running e2fsprogs compiled for arm32).
     (Closes: #987641)
   * Fix missing mutex unlock in an error path in the Unix I/O manager.
   * Fix Direct I/O support in the Unix I/O manager (this was a regression
     introduced in v1.46.2).
   * Fix mke2fs to avoid discarding blocks beyond the end of the file
     system to be created when creating a file system which is smaller than
     16MB and the file system size was explicitly specified and smaller
     than the size of the block device.  (Closes: #989630)
   * Teach mke2fs to avoid giving a spurious warning about a pre-existing
     partition table and it is creating a file system at a non-zero offset
     (so the partition table wouldn't be overwritten in any case).
     (Closes: #989612)
   * Fix e2image -Q to prevent a multiplcation overflow could corrupt
     the generated QCOW2 output file for very large file systems.
   * When e2fsck repairs '.' and '..' entries in corrupted directories, set
     the file type in the directory entry to be EXT2_FT_DIR and do not
     leave the file type as EXT2_FT_UNKNOWN.
   * Fix e2fsck so that the if the s_interval is zero, and the last mount
     or write time is in the future, it will fix invalid last mount/write
     timestamps in the superblock.  (This was a regression introduced in
     v1.45.5.)
   * Fix lsattr and chattr to avoid opening or calling EXT2_IOC_[GS]ETFLAGS
     on devices, since this can cause some devices to react badly as a
     result.  (Thix fixes a regression introduced in v1.46.2.)
     (Closes: #986332)
   * Fix potential memory leaks and seg faults when memory allocations fail.
   * Fix various compiler and valgrind warnings
   * Updated and clarified the e2image and filefrag man pages.
   * Update Dutch, Malay, and Serbian translations.
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